America might not have been the best to its African Americans, but every country has its problems, every government has its flaws, and no history will ever be perfect. One can find instances where the government failed to represent the nation and the people for almost any demographic in America.
Despite America's flaws, there’s still much to respect when it comes to the country and flag as a whole. In World War 1, World War 2, the Korean War, the Vietnam War, the War on Terrorism, and the silent daily battles that come with running a country, the government fights for the benefit of all. Even if there is more to love in America for the white majority than for the black minority, the country has still done considerable things for everyone's good.
As long as there is something you love in the country, it is the government that has fought to protect it. The men and women who have fought behind the flag might not be all good, but they are also not all evil. Of the millions of people who died for the country, there must have been at least one good person, and we owe it to them to respect their flag and kneel when an anthem plays to commemorate their sacrifice.